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So, you want to remove an integrated circuit? But you are worried about one major problem: You may end up damaging it.
These microchips are very delicate, however, and if you aren’t careful when removing them from the parent circuit, you run the risk of damaging the integrated circuit so severely that it cannot be used for the intended application anymore.
Luckily, there are some ways to remove an integrated circuit without damaging it. Read on to learn more!
Check the datasheet
The first thing you should do to avoid damaging an integrated circuit (IC) is to check the datasheet for the IC you’re trying to remove.
The datasheet will contain information about the IC’s tolerances—which can include things like acceptable voltage ranges, temperature ranges, and so on. You’ll be able to use this information to help you avoid damaging the IC.
For example, if the IC is rated for a maximum temperature of 125 degrees, you know to avoid applying heat to it.
Of course, you can also check the IC’s pinout to make sure you know which pins are the ones you need to remove.
Use the right tools
If you’re removing an IC from a printed circuit board (PCB), make sure you have the proper tools.
PCBs have a standard hole size, so you’ll need a standard IC extraction tool to remove the IC from the PCB. If you plan to use a desoldering pump, you’ll also need a desoldering pump tool, which is specifically designed for use with IC extraction tools. Using the wrong tool for the job can cause damage to the IC, the PCB, or both. If you aren’t sure what tool you need, you can always ask an engineer or the manufacturer of the device.
One of the most common causes of chip damage during IC removal is applying too much heat. You don’t want to apply so much heat that you damage the IC, but you do want to pre-heat the IC to make the removal process easier.
There’s no single correct way to pre-heat an IC before you attempt to remove it. Some engineers will apply heat shrink to the IC, others will use a heat gun or a heat blanket, and others will use an infrared heat lamp.
Pre-heating an IC before you attempt to remove it will make the removal process easier, but you do have to be careful not to apply too much heat.
In most cases, applying about 100 watts of heat for about five to 10 seconds should be enough to pre-heat the IC.
Keep your hands dry
If you’re removing an IC from a PCB, you have to be careful not to get your hands wet. Water and electricity don’t mix well, so if you get your hands wet while working on the PCB, you run the risk of shocking yourself.
If you’re wearing gloves, there’s no problem, but if you’re not wearing gloves, you’ll want to make sure your hands are dry. If your hands are wet, you can either remove the source of the water or change your gloves.
Handle the IC by the edges
Another way to avoid damaging an IC while you’re removing it is to handle the IC by its edges.
The part of the IC you want to remove is usually soldered to the rest of the circuit, so you want to avoid touching that part of the IC as much as possible.
In most cases, the best way to avoid touching the part of the IC you want to keep is to grab it by its edges.
Make sure you don’t grab the IC by the part you want to keep, though. When you have an IC removal tool, you can use the jaws of the tool to grab the IC and hold it in place. Be careful not to squeeze the IC too hard, though, or you risk damaging it.
Use a desoldering pump
If you’re trying to remove an IC from a PCB, there’s a chance you’ll have to desolder the connections on the IC.
Desoldering is a tricky process, and it’s easy to damage the pins on the IC if you don’t know what you’re doing. For this reason, you should use a desoldering pump to remove the IC.
A desoldering pump works by creating a vacuum and sucking out the molten solder. The suction created by a desoldering pump removes the molten solder while leaving the pins on the IC intact.
If you try to desoldering the IC manually, there’s a good chance you’ll burn the pins, which will damage the IC. Using a desoldering pump will help you avoid damaging the IC.
Use desoldering wick
If you don’t have a desoldering pump available, you can use desoldering wick to remove ICs. Like the name suggests, desoldering wick is a long piece of fabric that’s designed to remove molten solder from a surface.
The process for removing ICs with desoldering wick is similar to the process for using a desoldering pump, but desoldering wick is a little less efficient.
To use desoldering wick, you’ll first want to pre-heat the IC like we talked about earlier. Then, use a clean cloth or paper towel to wick the excess solder away from the IC. Be sure to use a cloth or paper towel, though—don’t try to use your fingers.
Rotate, don’t pull
When you’re removing an IC from a PCB, you should rotate the IC, rather than pulling it straight up.
This will reduce the risk of damage to the IC, PCB, or both. If you try to pull the IC straight up, there’s a chance you’ll get the IC and PCB stuck together. This is called bridging, and it will damage both the IC and the PCB.
If you rotate the IC, however, you’ll reduce the risk of bridging. This means you’ll reduce the risk of damaging the IC and PCB.
Seek professional help
If you’re having trouble removing an IC and you’re unsure how you can correct the problem, you should consult an engineer or find an engineer who can help you solve the issue.
Engineers are trained to deal with problems like these, so they are much more likely to know how to solve your issue than you are. If you’re trying to remove an IC from a PCB, the engineer will likely suggest that you use a desoldering pump.
If you’re trying to remove an IC from another type of circuit, the engineer may have a different suggestion for how to remove the IC.
Choose the right IC supplier in China
Finally, you should consider choosing the right IC supplier in China if you’re hoping to purchase integrated circuits for your application. And this is where ICRFQ comes in. We are a reputable IC supplier in China. We deal with a wide range of integrated circuits suitable for different applications.
Contact us for the quality electronic components for sale in China.
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